They use the COG to become the legal government after the Great War. They weren't before hand.
I would say that's because they never existed before the war. And even if there was, Shadow Governments aren't supposed to be actual organisations, they're alliances of corrupt people.
You can bring up the none-canon going into space thing. That applies to them being the legal government before as well as after theories, so I don't get your point.
No it doesn't it applies to exactly the opposite, the legitimate government wouldn't plan to abandon the planet that's insane; it was to tie right into the X-Files rip-off, corrupt people trying to save their own ass from the apocalpyse. Except that your right, it's non-canon and doesn't exist any longer and thus the entire pay-off for the Vault Experiments and the Enclave's past.
If the whole United States government was the Enclave before the Great War than they would have come up with something better than Control Station Enclave wouldn't they? That is the biggest flaws with your theory. You don't support the Enclave coming back as a major power, but your theory opens the door for it. That the Enclave were the government before the war. All that power and wealth they could have had bases all over the united states. Why not they were the government right?
Because Eden's specifically mentions that decades after the war most of the CoG facilities that he serviced as a communications relay were evacuated for a location on the West Coast.
“The ZAX series of computers was introduced in the years preceding the war. The government installed many of them to help automate various systems. This facility was designed for Continuity of Government, in the event that a catastrophe occurred. My terminal was installed to oversee the basic functions of the facility, and to act as a relay between other installations around the country. Data was acquired, anolysed, and stored. In the decades following the war, I watched as the remnants of the Government retreated to the West Coast."So get ready for this, thank you Fallout 3.
The Shadow Cabal theory suits what we already know about the Enclave. It has been around since Fallout 2.
So in any event, either the Enclave - as a Shadow Government - no longer exists as it recalled all of the personnel in other bunkers to the Oil Rig - hence they had legitimate authority - or the less obfuscated and more logical answer that the Oil Rig was part of CoG and after the war when all was lost the Government regrouped and formed what would be known as the Enclave - the name a colloquialism taken from the name of the installation they resided Control Station: ENCLAVE.
Why do they even call themselves the Enclave if they were the pre-war government? Why not just hi, we are the government.
Courtesy of Fallout 3. President Richardson never refered to it as the Enclave.